生产管理ProjectManagement(1)

按一下以編輯母片標題樣式,按一下以編輯母片,第二層,第三層,第四層,第五層,*,By:Prof.Y.Peter Chiu,Project Management,HOMEWORK SOLUTION,1,#3,(a),(b),CP=A B D F G (17),2,#3,=Where,is not needed for solution,but it is the slack time.,(c),A,B,C,D,E,F,H,G,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,3,#4,A=3,B=2,E=6,P2,=0,D=4,C=5,P1,=0,G=5,F=1,K=5,H=3,I=4,P3,=0,J=4,0,3,1,4,3,8,7,12,3,4,7,8,0,0,2,2,7,7,8,8,2,2,8,8,7,12,7,12,8,12,8,13,8,12,9,13,13,16,17,14,2,12,7,17,13,17,13,17,16,17,16,17,17,17,21,21,*,*,*,*,*,4,(a),A ,B ,C A,D A,E B,F C，D,G D，E,H F，G,I F，G,J H，I，K，L,K B,L ,(b),A-C-F-H-J,A-C-F-I-J,A-D-F-H-J,A-D-F-I-J,A-D-G-H-J,A-D-G-I-J,B-E-G-H-J,B-E-G-I-J,B-K-J,L-J,16,17,15,16,19,20,20,21,11,14,*,#4,5,#4,(c),Activities,ti,ESi,SFi,LSi,LFi,Slack,A,B,C,D,E,F,G,H,I,J,K,L,3,2,5,4,6,1,5,3,4,4,5,10,0,0,3,3,2,8,8,13,13,17,2,0,3,2,8,7,8,9,13,16,17,21,7,10,1,0,7,4,2,12,8,14,13,17,12,7,4,2,12,8,8,13,13,17,17,21,17,17,1,0,4,1,0,4,0,1,0,0,10,7,CP=B-E-G-I-J,6,#5,(a),Activities,Immediate,Predecessor,A,B,C,D,E,F,G,H,I,A,B,D,A，E,D,C，F,C，F，G,7,#5,(b),A,B,P,1,D,E,G,C,F,P,2,I,H,8,#6,(a),(b),CP=,A E G,(78),C FG,(78),9,#6,(c),(d),A,B,C,E,F,32,30,77,78,58,10,#8,A=3,C=1,P=0,B=5,D=4,E=3,F=3,H=4,G=2,0,0,3,3,3,3,8,8,3,7,4,8,8,8,8,8,8,8,12,12,8,9,11,12,12,12,15,15,12,13,16,17,15,15,17,17,A-B-P-D-F-G,11,#8,12,=Where,is not needed for solution,but it is the slack time.,#8,A,B,C,D,E,F,H,G,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,13,#8,17,A,B,D,F,G,3,5,4,3,2,2,3,2,2,1,$50,125,125,120,100,Reduce,A 32 costs$50,G 21 costs$100,Total$150,*,*,CP A-B-D-F-G,A-B-D-H,(a),14,#8,15,A,B,D,F,G,H,2,5,4,3,1,4,2,3,2,2,1,2,$125,125,120,150,*,If we consider“F”then we must,consider “H”along with“F”.,Reduce,B by 2,D by 1,*,(why?),(why not 2?),(refer to Gantt Chart),(a),15,#8,(a),cost$125*2 (B),$125*1 (for D),Total$375,CP A-B-D-F-G,A-B-D-H,A-B-E-F-G,A-B-E-H,Time,CP,Activities,Courent,time,Expedited,time,cost,12,A,B,D,E,F,G,H,2,3,3,3,3,1,4,2,3,2,2,2,1,2,$125,50,120,150,16,#8,(a),One can consider D,&,E for$175/wk or F,&,H for$270/wk.,return$150 per weak.,(b),Activity,Normal cost,A,B,C,D,E,F,G,H,#,$200,600,100,650,450,500,500,600,17,#8,(b),Direct cost,$3600 for 17 days.,For 12 days optimal project schedule,Add,A,G,B,D,1,1,2,1,$50 =50,$100 =100,$125 =250,$125 =125,$525,Direct cost,$3600+$525=$4125 for 12 days.,Indirect cost,$150*12=$1800,Total costs=$5925.,vs.$6150,#,18,#10,(a),19,#10,(b),Activities,A,B,C,D,E,F,G,A,A，B,C,E，F,ti,ES,EF,LS,LF,Slack,32,21,30,45,26,28,20,0,0,0,32,32,30,58,32,21,30,77,58,58,78,0,11,0,33,32,30,58,32,32,30,78,58,58,78,0,11,0,1,0,0,0,CP=,A-,P,1,-E-G,C-F-G,20,#10,：,A-E-G :CP,：C-F-G :CP,：A-D,21,#10,Time,Act.,Current,Exp.-time,cost/dy,78,A-E-G,C-F-G,A,C,E,F,G,32,30,26,28,20,26,30,20,24,18,$50,110,40,75,Reduce G one day cost$75.,CP：A-D*,A-E-G,C-F-G,*,22,#10,Time,Act.,Current,Exp.-time,cost/dy,77,A-D,A-E-G,C-F-G,A,C,D,E,F,G,32,30,45,26,28,19,26,30,40,20,24,18,$50,60,110,40,75,*,*,Reduce,A&F,by 4 day cost$90*4=$360.,23,#10,Time,Current,Exp.-time,cost,Activities,CP,73,A-D,A-E-G,C-F-G,A,C,D,E,F,G,28,30,45,26,24,19,26,30,40,20,24,18,$50,$60,$110,$75,DONE,Original 78 days cost$3300+$100(78),=$11,100,New expedited project scheduce 73 days.,Cost Direct cost+75+360=$3735,Indirect 73*$100=$7300,Total：$11,035.,24,#18,P,r,T,I,(25 15)=10=?,E(T,I,)=9.17,Var(T,I,)=4.69,P,r,Z 0.383=(0.50+0.1492)=0.649,(,P.530,),25,#19,(a),By lnspection CP=A B E G H (25),E=6,26,#19,(b),Pr T28 weeks|CP=ABEGH=？,Pr T32 weeks|CP=ABEGH=？,27,#19,(c),A B E G H Length=26.5,2,A-B-E-G-H,=7.860 =2.804,PrZ =0.535=0.7037=,70.37,PrZ =1.962=0.9751=,97.51,PrTX weeks|CP=ABEGH=95,=1.645 ,X=31.11 weeks,Z,#,28,#20,(a),All PATHS A-C-E ,14,A-D-E ,10,B-D-E ,12,B-F-G ,15,A-F-G ,13,(b),B-F-G*,(c),29,#20,(d),A-C-E 14 ,2,=4.7,B-F-G 15 ,2,=5.8,(e),A-C-E 14,2,=4.7,A-D-E 10,2,=3.3,A-F-G 13,2,=5.8,B-F-G 15,2,=5.8,B-D-E 12,2,=3.3,P,r,T,20=(,.9972,)(1.000)(.9982)(,.981,)(1.000),=,0.976#,30,#20,(f),A-C-E,B-F-G,are Independent,(d)is likely to be the most accurate,31,#21,From#3,CP=,A B D F G,32,#21,(a),(b),A-B-D-F-G,=,17,2,A-B-D-F-G,=,2.52,Ans(b),33,#21,(c),Pr T 20 weeks|CP=A B D F G,=Pr Z =1.89,Pr T X week=85%,=,0.9706,Ans(c),(d),Z=1.037,X=18.65(weeks),Ans(d),34,(a),(b),CP=,A B D F H,(41 days),#30,35,(c),Indirect costs=$200 per day,0,6,22,25,27,31,39,16,18,#30,36,(c),Choose B,reduce 4 days,from 10 to 6,When,B+D=6+6=12,CP=ABDFH=37,&ACFH =37,Cost 66.67*4=$266.67,Save$200*4=$800,#30,37,(c),BC=192；DC=225；,Choose F=$110$200 best,reduce F by 2 days,from 9 to 7,CP=ABDFH=35,ACFH=35,ABEG=6+6+9+14=35,cost 110*2=$220,save$200*2=$400,#30,38,(c),BC=192200,by 2 day,cost 192*2=384,save 200*2=400,Total costs=266.67+220+384=870.67,Savings=800+400+400=1600,Net savings=729.23,#30,39,A B D F H (41),200+600+625+700+200+400+1000+1100+$200(41),=$13025,Original Direct$4825,Indirect$200*41,Original Costs,$13,025,#30,40,#30,Expedited Costs,Original$4825,+Expedited Costs$267 (4*B),220 (2*F),384 2*(B+C),$871,+Indirect Costs,$200*(33)=$6600,$12,296,=Net savings$729,=Time saved 41-33=8(days),41,The End,42,